If you're brave enough to watch me hack, have at it. This is automagically updated every 5 minutes. This isn't quite what I had in mind, but a short cable sort of hosed my original idea. Come back later and see if I figured out a way to get around the short-cable problem...

Local time is 06:44 PM. If it's late at night, you're not likely to see much of anything.

Thanks to Paul Grzelak and Jim Hoburg for keeping me from reinventing the proverbial wheel.